grpc-mission.lua

if not GRPC then
    GRPC = {
        -- scaffold nested tables to allow direct assignment in config file
        tts = { provider = { gcloud = {}, aws = {}, azure = {}, win = {}, parler = {} } },
        srs = {},
        auth = { tokens = {} }
    }
end

-- load settings from `Saved Games/DCS/Config/dcs-grpc.lua`
do
    env.info("[GRPC] Checking optional config at `Config/dcs-grpc.lua` ...")
    local file, err = io.open(lfs.writedir() .. [[Config\dcs-grpc.lua]], "r")
    if file then
        local f = assert(loadstring(file:read("*all")))
        setfenv(f, GRPC)
        f()
        env.info("[GRPC] `Config/dcs-grpc.lua` successfully read")
    else
        env.info("[GRPC] `Config/dcs-grpc.lua` not found (" .. tostring(err) .. ")")
    end
end

-- Set default settings.
if not GRPC.luaPath then
    GRPC.luaPath = lfs.writedir() .. [[Scripts\DCS-gRPC\]]
end
if not GRPC.dllPath then
    GRPC.dllPath = lfs.writedir() .. [[Mods\tech\DCS-gRPC\]]
end
if GRPC.throughputLimit == nil or GRPC.throughputLimit == 0 or type(GRPC.throughputLimit) ~= "number" then
    GRPC.throughputLimit = 600
end

-- load version
dofile(GRPC.luaPath .. [[version.lua]])

-- Let DCS know where to find the DLLs
if not string.find(package.cpath, GRPC.dllPath) then
    package.cpath = package.cpath .. [[;]] .. GRPC.dllPath .. [[?.dll;]]
end

-- Load DLL before `require` gets sanitized.
local ok, grpc = pcall(require, "dcs_grpc_hot_reload")
if ok then
    env.info("[GRPC] loaded hot reload version")
else
    grpc = require("dcs_grpc")
end

-- Keep a reference to `lfs` before it gets sanitized
local lfs = _G.lfs

local loaded = false
function GRPC.load()
    if loaded then
        env.info("[GRPC] already loaded")
        return
    end

    local env = setmetatable({ grpc = grpc, lfs = lfs }, { __index = _G })
    local f = setfenv(assert(loadfile(GRPC.luaPath .. [[grpc.lua]])), env)
    f()

    loaded = true
end

if GRPC.autostart == true then
    env.info("[GRPC] auto starting")
    GRPC.load()
end